3TU6

The Structure of a Pseudoazurin From Sinorhizobium meliltoi

3TU6 の概要

• エントリーDOI: 10.2210/pdb3tu6/pdb
• 分子名称: Pseudoazurin (Blue copper protein), COPPER (II) ION, GLYCEROL, ... (4 entities in total)
• 機能のキーワード: cupredoxins, beta barrel, electron transfer, redox, electron transport
• 由来する生物種: Sinorhizobium meliloti
• タンパク質・核酸の鎖数: 1
• 化学式量合計: 13613.16

構造登録者

Laming, E.M.,McGrath, A.P.,Guss, J.M.,Maher, M.J. (登録日: 2011-09-16, 公開日: 2012-05-30, 最終更新日: 2024-02-28)

主引用文献

Laming, E.M.,McGrath, A.P.,Guss, J.M.,Kappler, U.,Maher, M.J.
The X-ray crystal structure of a pseudoazurin from Sinorhizobium meliloti.
J.Inorg.Biochem., 115:148-154, 2012

PubMed Abstract: The X-ray crystal structure of oxidised pseudoazurin from the denitrifying plant symbiotic bacterium Sinorhizobium meliloti (SmPAz2) has been solved to a resolution of 2.0 Å. The pseudoazurin from Sinorhizobium sp. is unusual as it forms an operon with a sulfite dehydrogenase enzyme, rather than a Cu nitrite reductase. Examination of the structure reveals that the geometric parameters of the Type I Cu site in SmPAz2 correlate with observed features in the electronic spectrum of the protein. Comparison of the structure of SmPAz2 with those of pseudoazurins from five other bacterial species shows that the surface of SmPAz2 bears a conserved hydrophobic patch encircled by positively-charged residues, which may serve as a recognition site for its redox partners.

PubMed: 22776735
DOI: 10.1016/j.jinorgbio.2012.04.005

実験手法

X-RAY DIFFRACTION (2 Å)